Not only shower heads. I removed all the restrictors from each fixture when we built our house. I have also improved a numbeer of motel and hotel showers over the years. A Leatherman is a handy tool.
When I was in sales and on the road, I always stayed at the same motels in whatever city I was in...I carried my own shower head and would simply replace theirs with mine....some of theirs basically sprayed a mist which was never warm enough...terrible things!!!!